Starrett 54909 Low Carbon Steel Flat Stock C1018

Product Description

The STARRETT 54909 is a low carbon steel flat stock bar made to AISI Type C1018 material specification. It measures 24 inches long, 0.75 inches wide, and 0.156 inches thick (5/32 inch). C1018 is a mild, low carbon steel commonly used for general fabrication, mounting brackets, shims, straps, and structural supports in mechanical and industrial applications. Tolerances are tightly controlled: length tolerance is plus 0.625 inches, width tolerance is plus 0.000 to 0.005 inches, and thickness and squareness tolerance is plus or minus 0.001 inches. The part ships as a single piece.

This flat stock is suited for use by HVAC technicians, plumbers, electricians, millwrights, and general maintenance professionals who require raw steel stock for custom fabrication on the job. Typical applications include fabricating pipe hangers, equipment mounting tabs, conduit supports, duct bracing, and other field-fit metal components. The C1018 grade machines and welds cleanly, making it practical for shop or field cutting and drilling without special tooling.

Key Features

• AISI Type C1018 low carbon steel construction for reliable weldability and machinability
• 24 inches long with a plus 0.625 inch length tolerance
• 0.75 inch width with a tight plus 0.000 to 0.005 inch tolerance
• 0.156 inch (5/32 inch) thickness held to plus or minus 0.001 inch
• Squareness tolerance of plus or minus 0.001 inch for accurate layout work
• Sold as a single piece with no minimum order beyond one unit

Compatibility

General-purpose raw flat stock suited for fabrication tasks across HVAC, plumbing, electrical, and mechanical trades wherever C1018 low carbon steel bar stock is specified.

Installation Notes

Cut to length using a cold saw, band saw, or angle grinder with a metal-cutting wheel. Deburr all cut edges before installation to prevent injury and ensure proper fit. When welding, follow standard MIG or stick procedures appropriate for low carbon steel. Wear appropriate PPE including eye protection and gloves when cutting or grinding.